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W. S. LEWIS HEATER FOR HAIR WAVING Filed SebL 3Y1 mute p WW, W

Patented Nov. 1, 1927.

Y tenses PATENT FFICE.

WILBUR S. LEWIS, OF CLEVELAND, OHIO.

HEATER iron Hair. wnvnvej Application filed September 2, 1925. Serial No. 53,975.

This invention relates to heaters, and more particularly to heaters used in permanent Waving processes.

In permanent hair waving, it is customary to provide a plurality of hollow cylindrical.heater casings having spaced walls for containing electric wiring arranged to produce heat when the current is turned on. The wiring extends through-apertures in the casing walls and is connected with a source of electric supply through an arbor positioned above the hair to be waved. The heaters are suspended by means of the wiring, and as theyare free to swing, the wiring insulation is frayed by frictional engagement with the portions of the casings through which they pass, eventually causing short circuits and necessitating replacement of the wiring.

An object of my invention is to provide means for securing the wiring adjacent the heaters in a stationary relation therewith so that'there will be no relative movement to cause the above set forth conditions.

Another objectofthe invention resides in providing a suspended heater with which a member is adjustablyassociated to secure the wiring adjacent thereto in a stationary relation. i i

These and other objects and the invention itself will appear in the following detailed description of one embodiment of the invention.

In the accompanying drawings, Figure 1 is a side elevation of a heater and a wiring retaining member associated therewith to secure the wiring adjacent the heater stationary relatively therewith; Fig. 2 is a transverse enlarged sectional view of the same taken on line 22 of Fig. 1; and Fig. 3 is another transverse sectional view taken on line 33 of Fig. l.

Referring now to the drawings by characters of reference, the heater casing includes an inner cylindrical shell member 10, and

an outer shell member 11. The major portion of the shells are preferably cylindrical and spaced in parallel relation. WViring 12 is wound around the inner shell, between the shells, and arranged to produce heat when the. electric current is turned on, such construction being of a conventional character which is well known in the art. An end 13 of the outer shell is spun to a diameter to engage the inner shell and is preferably secured therewith by expanding the adjacent end 14 of the innershell, in any other suitable manner.

The outer shell is of considerably shorter length than the inner shell, and. the space between the end 15 ofthe outer shell and the lI1Il6l SllBll, is enclosed by a cap member 16. The inner shell extends through a'central aperture 111 the cap member 16, and the outer edge of the cap member is pressed over the end of the outer shell. The cap member is preferably secured in position by rolling a bead 17 in the inner. shell, adjacent the cap member.

The wiring 12 extends through apertures 18 111 the cap member and are suspended from an overhead support (not shown), in contact with a suitable source of electric supply. i v

A cylindrical sleeve member is slidable on the pro ecting end 19 of the inner shell member to secure the portion of the wiring,

adjacent the cap member, in stationary relation with the heater so that the insulation covering will not be frayed by movement against the aperture walls. The projecting, end 19 of the inner shell is closed at its end by a wall 21, while the other end of the lnner shell is open, so that it can be moved over a strand of hair, prepared for steaming, to form a permanent wave therein.

The sleeve member 20 consists of a cylindri'cal body open at one end, and closed at the other end by a wall 22. The end wall 22 is provided with a central aperture 23 through which the wiring 12 extends. The inner diameter of the sleeve member is larger than the external'diameter of the inner casing shell extension, and is such that it can be forced to slide over the pro- 'jecting end 20 of the inner shell and tightly engage the wiring 12, thus securing it stationary with the heater at the points where 1t passes through the cap member of the casing. The slidable sleeve member 20 is removable from the inner shell to permit the wiring to be assembled, and longitudinally extending detents 24: are formed in the wall of the projecting end 19 of the inner casing, to align with the apertures 18 in the cap member of the casing for receiving and positioning the wiring.

A. strip of cork 25, or other suitable similar filler material, is placed over the end of the inner shell and extended on opposite sides thereof. The sleeve member engag ing with the filler member prevents binding,

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so that thesleeve can be moved upon, or removed from, the inner shell. Air holes 26 are provided in theusleeve member to prevent condensation, which would be caused by enclosing the end of the inner shell when the current is turned on.

Various changes can be made in the details and arrangement of the'structure herein described without departing from the spirit of the invention and the scope of what I claim. p

" What I claim'is: V

'1 In a heat'er'for'permanent waving apparatus, the combination of a hollow cylin-' d'rical' casing comprising an outer relatively short tube and an inner relatively long tube, the outer tube telescoped over an end of the inner'tiibe and joined therewith at its ends, the lateral-walls or the tubes'being relatively spaced, an electric heater element between said walls, a tubular handle element sup ported in telescoped relation upon the end or the inner tube, with their lateral walls relatively spaced, and electrical circuit conductors' disposed within the space between the handle innerwall and the said projecting end of the inner tube. I

2. Ina heater for permanent waving apparatus; thecombjination of a hollow cylindrical casingcomprising an outer relatively short tube and an inner relatively long tube, the outer tubetelescoped over an end of} the inner tube andjoined therewith at its" ends, the lateral walls of the tubes beingrelatively spaced, an electric heater elementbetween' said walls, a tubular handle element supported in telescoped relation upon the end of the inner tube, ribs carried by thehandle' element for retaining the walls of the handle in spaced relation with the Walls of the inner tube, and electrical circuit conductors disposed within the space between the handle inner wall and the said projecting end of the inner tube.

3. In a heater for permanent waving apparatus, the combination of a hollow cylindrical'ca'sing colnprising an outer relatively short tube and an inner relatively long tube, the outer tube telescoped over an end of the inner tube and joined therewith at its ends, the lateral walls of the tubes" beingrelatively spaced", an electric heater element be tween said walls, a tubular haridle element supported in telescoped relation upon the end of thein'ner tube withtheir lateral walls relatively spaced, longitudinally extending detents' formed inthe walls of the tubular handle", and electrical circuit conductors" dis-l posed within the longitudinal detents and the vspace between the handle inner wall" andthe saidproje'ct'i-ng end of the inner tube.

45. In a" heater for permanent waving apparatus,-the combination of a hollowcylindrical casingcomprisingan outer relatively short tube and an inner relatively long tube, the outer tube telescop edover' anend of the inner tube and joined therewith at its ends, the lateral walls of the tubes being relatively spaced, an electric heater element between said walls, a tubular handle element supportedin telescoped relation upon the end of the inner tube with their lateral-walls relatively spaced, said handle portions haV-' ing apertures adjacent the upper end there.- of for the escape of heat, and electrical circuit conductorsdisposedwithinthe-s ace be;- tweenthe handle inner wall and te sc-id' projecting end oithe inner tube.

In testimony whereof, I hereunto affix my signature.

' WILBUR s. LEWIS. 

